mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-18 04:15:32 +00:00
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <uuid/uuid.h>
|
|
#include "kerncompat.h"
|
|
#include "radix-tree.h"
|
|
#include "ctree.h"
|
|
#include "disk-io.h"
|
|
#include "print-tree.h"
|
|
#include "transaction.h"
|
|
|
|
int main(int ac, char **av) {
|
|
struct btrfs_super_block super;
|
|
struct btrfs_root *root;
|
|
struct btrfs_path path;
|
|
struct btrfs_key key;
|
|
struct btrfs_root_item *ri;
|
|
struct btrfs_leaf *leaf;
|
|
struct btrfs_key found_key;
|
|
char uuidbuf[37];
|
|
int ret;
|
|
int slot;
|
|
|
|
if (ac != 2) {
|
|
fprintf(stderr, "usage: %s device\n", av[0]);
|
|
exit(1);
|
|
}
|
|
radix_tree_init();
|
|
root = open_ctree(av[1], &super);
|
|
if (!root) {
|
|
fprintf(stderr, "unable to open %s\n", av[1]);
|
|
exit(1);
|
|
}
|
|
printf("root tree\n");
|
|
btrfs_print_tree(root->fs_info->tree_root,
|
|
root->fs_info->tree_root->node);
|
|
btrfs_init_path(&path);
|
|
key.offset = 0;
|
|
key.objectid = 0;
|
|
key.flags = 0;
|
|
btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
|
|
ret = btrfs_search_slot(NULL, root->fs_info->tree_root,
|
|
&key, &path, 0, 0);
|
|
BUG_ON(ret < 0);
|
|
while(1) {
|
|
leaf = &path.nodes[0]->leaf;
|
|
slot = path.slots[0];
|
|
if (slot >= btrfs_header_nritems(&leaf->header)) {
|
|
ret = btrfs_next_leaf(root, &path);
|
|
if (ret != 0)
|
|
break;
|
|
leaf = &path.nodes[0]->leaf;
|
|
slot = path.slots[0];
|
|
}
|
|
btrfs_disk_key_to_cpu(&found_key,
|
|
&leaf->items[path.slots[0]].key);
|
|
if (btrfs_key_type(&found_key) == BTRFS_ROOT_ITEM_KEY) {
|
|
struct btrfs_buffer *buf;
|
|
ri = btrfs_item_ptr(leaf, path.slots[0],
|
|
struct btrfs_root_item);
|
|
buf = read_tree_block(root->fs_info->tree_root,
|
|
btrfs_root_blocknr(ri));
|
|
switch(found_key.objectid) {
|
|
case BTRFS_ROOT_TREE_OBJECTID:
|
|
printf("root ");
|
|
break;
|
|
case BTRFS_EXTENT_TREE_OBJECTID:
|
|
printf("extent tree ");
|
|
break;
|
|
}
|
|
printf("tree %llu %u %llu\n",
|
|
(unsigned long long)found_key.objectid,
|
|
found_key.flags,
|
|
(unsigned long long)found_key.offset);
|
|
btrfs_print_tree(root, buf);
|
|
}
|
|
path.slots[0]++;
|
|
}
|
|
btrfs_release_path(root, &path);
|
|
printf("total blocks %llu\n",
|
|
(unsigned long long)btrfs_super_total_blocks(&super));
|
|
printf("blocks used %llu\n",
|
|
(unsigned long long)btrfs_super_blocks_used(&super));
|
|
uuidbuf[36] = '\0';
|
|
uuid_unparse(super.fsid, uuidbuf);
|
|
printf("uuid %s\n", uuidbuf);
|
|
return 0;
|
|
}
|